package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.common.vo.MemberRespVo;
import com.atguigu.gulimall.auth.Feign.MemberFeignService;
import com.atguigu.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * @program: gulimall
 * @description: 处理社交登录请求
 * @author: 江天赐
 * @create: 2022-08-12 16:42
 */
@Slf4j
@Controller
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session, HttpServletResponse servletResponse) throws Exception {
        //1.根据code获取accessToken
        Map<String, String> map = new HashMap<>();
        Map<String, String> header = new HashMap<>();
        Map<String, String> query = new HashMap<>();
        map.put("client_id", "2829325650");
        map.put("client_secret", "536bb5f928771795390c2f4e076b5004");
        map.put("grant_type", "authorization_code");
        map.put("redirect_uri", "http://auth.gulimall.com/oauth2.0/weibo/success");
        map.put("code", code);
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", header, query, map);

        //2.处理
        if (response.getStatusLine().getStatusCode() == 200) {
            //获取到了accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);
            //当前用户是否是第一次登录进来，是则注册
            R r = memberFeignService.oauthLogin(socialUser);
            if (r.getCode() == 0) {
                MemberRespVo data = r.getData("data", new TypeReference<MemberRespVo>() {
                });
                log.info("登录成功，用户信息{}" , data.toString());
                //1.第一次使用session：命令浏览器保存卡号。JSESSION这个cookie
                //以后浏览器访问那个网站就会带上这个网站的cookie
                //子域之间：gulimall.com auth.gulimall.com
                //发卡的时候(指定域名为父域名)，即使是子域名发的卡，也能让父域名使用
                //TODO:1.默认发的令牌。session=dsajk。作用域：当前域（解决子域session共享问题）
                //TODO:2、使用JSON的序列化方式；来序列化对象数据到redis
                session.setAttribute("loginUser",data);
//                new Cookie("JSESSIONID","dada").setDomain("");//指定域名为父域名
//                servletResponse.addCookie();
                //2.登录成功就跳回首页
                return "redirect:http://gulimall.com";
            } else {
                return "redirect:http://auth:gulimall.com/login.html";
            }
        } else {
            return "redirect:http://auth:gulimall.com/login.html";
        }
    }
}
